This is the browser extension enhancing an invaluable site for journalists working across all sectors. Duedil allows you to view company financial information, lists of directors and more in clear graphs and charts.

Click on any website and then the browser extension and you can look up the financial information on that firm. It may need assistance in recognising the correct company, however.

For example, if I am on the Guardian’s website and click the browser extension, I will get details for a company called Guardian Education Interactive. I must then select “not the company I am looking for” and enter Guardian Media Group. Clicking on a director’s name, such as in this case Alan Rusbridger, links me through to the full Duedil website.

This is a web app for Twitter and social media analytics. Sync your account/s and you will see a dashboard where you can find out the best time to tweet, map your followers and see the ratio of followers to friends.

3. News readers

Okay, this is a group of browser extensions and web apps but worth mentioning as one category. The Guardian, Independent, and several other national newspapers have opted for Chrome extensions, allowing you to read the headlines from your browser.

The New York Times has opted for a web app with more story detail, which fills the browser.

If you record interviews and play them back later to transcribe them this is a must have app. It gets round the problem of playing audio in one application (such as iTunes) and then writing in a text document.

Add your mp3 or wav audio file and you can transcribe by typing in the box below the player. It also works offline. One of the great features are the short cuts: alt+p = pause/resume, alt+i = rewind two seconds, alt+o = forward two seconds.

Mappeo is a useful web app for regional reporters or anyone covering a localised story, such as a protest. Open the app and you will see a map of geolocated videos that have been uploaded to YouTube. You can click on the icon to launch and play the video.

Add this browser extension, right click on a picture or upload an image and you can find out where else it has been used. It could be a valuable journalism tool to verify photographs. It can even scan for reversed images.

First journalists fell for made-up stories sent out by a fake PR to highlight to practice of churnalism, now news outlets – including the BBC, Daily Mail and Telegraph – have published a hoax story that users of Internet Explorer 6 are dumb.

Here are five questions journalists should ask themselves in order to avoid falling for a hoax.

1. Does the story sounds possible? Journalists ask questions and should look at data with a critical eye. If presented with a press release saying the IE6 users are dumb, ask yourself how likely that really is.

Why do people use the an old version of Internet Explorer? Because they work for firms that do not grant them administrator rights to update software? Because they are less experienced web users and don’t know how to? Because they are older users who are less likely to trust updates and downloads?

2. When was the web domain of the PR company registered? A website such as who.is will give you a date of registration, the address where the site is registered, a company number and server details. (You can click the image below to see the results.)

3. Are the photos ripped from another website? The hoaxer who wrote the “IE6 users are dumb” press release included employee photographs on the fake company website ripped from a legitimate French business.